I've identified multiple Pro Mini NRF24l01 PCB Sensor Boards
http://dutch-arduino-tinkering.blogspot.com/2014/01/arduino-pro-mini-33v-wireless-nrf24l01.html
https://www.openhardware.io/view/480/nRF24L01-Pro-Mini-Bottom-Shield
https://www.openhardware.io/view/561/JMP-Arduino-Pro-Mini-Multisensor-Board-v21
https://forum.mysensors.org/uploads/files/1440959677580-board.png
https://github.com/tonnerre33/Soil_Moisture_Sensor_MD-cr/blob/master/Soil_Moisture_Sensor_SMD-cr.csvS

But none match Electrodragons :
http://www.electrodragon.com/product/nrf24duino-arduino-mini-plus-nrf24l01-board/